Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287879 | Hydraulically energized wireline blowout preventer | Lionel M. Gingras, Russell C. Gilleylen | 1994-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287879 | Hydraulically energized wireline blowout preventer | Lionel M. Gingras, Russell C. Gilleylen | 1994-02-22 |